From A Wiki of Ice and Fire
Joramun was a legendary King-Beyond-the-Wall. According to myth, in ancient days he blew the Horn of Winter and "woke the giants from the earth".
Joramun brought down the Night's King alongside the King of Winter, Brandon the Breaker.
A Clash of Kings
Qhorin Halfhand lists Joramun among Kings-Beyond-the-Wall who either broke their strength on the Wall, or had their strength broken by the power of Winterfell on the far side.
A Dance with Dragons
Jon Snow recalls that Mance Rayder had claimed to have found the Horn of Joramun in Joramun's grave beneath a glacier, high up in the Frostfangs. However, according to Tormund, they had found the horn in the grave of a giant.
- ↑ 1.0 1.1 A Clash of Kings, Chapter 23, Jon III.
- ↑ A Storm of Swords, Chapter 15, Jon II.
- ↑ A Storm of Swords, Chapter 56, Bran IV.
- ↑ The World of Ice & Fire, The Wall and Beyond: The Night’s Watch.
- ↑ A Dance with Dragons, Chapter 10, Jon III.
- ↑ A Dance with Dragons, Chapter 58, Jon XII.